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The electric transport properties of superconducting FeSe0.3Te0.7/Au c-axis (S/N) junctions, fabricated by using Pulsed Laser Deposition technique, have been investigated in the temperature range of 2 K to the superconducting transition…

Superconductivity · Physics 2015-06-15 Y. T. Shen , Y. S. Li , K. C. Lin , M. K. Wu , C. C. Chi

We investigate the thermoelectric propeties of the electron-doped FeAs$_2$ both experimentally and theoretically. Electrons are doped by partially substituting Se for As, which leads to a metallic behavior in the resistivity. A Seebeck…

Materials Science · Physics 2013-09-06 Hidetomo Usui , Kazuhiko Kuroki , Seiya Nakano , Kazutaka Kudo , Minoru Nohara

During the standard ac lock-in measurement of the resistance of a two-dimensional electron gas (2DEG) applying an ac current $I = \sqrt{2} I_0 \sin(\omega t)$, the electron temperature $T_e$ oscillates with the angular frequency $2 \omega$…

Mesoscale and Nanoscale Physics · Physics 2022-09-14 Akira Endo , Shingo Katsumoto , Yasuhiro Iye

Nickel silicide Schottky diodes formed on polycrystalline Si<P> films are proposed as temperature sensors of monolithic uncooled microbolometer IR focal plane arrays. Structure and composition of nickel silicide/polycrystalline silicon…

Materials Science · Physics 2013-04-23 K. V. Chizh , V. A. Chapnin , V. P. Kalinushkin , V. Ya. Resnik , M. S. Storozhevykh , V. A. Yuryev

Charge carriers that execute multi-phonon hopping generally interact strongly enough with phonons to form polarons. A polarons sluggish motion is linked to slowly shifting atomic displacements that severely reduce the intrinsic width of its…

Materials Science · Physics 2017-12-19 David Emin

The Seebeck coefficient in liquids often reaches the mV/K range, yet its microscopic origin remains unclear due to the complexity of electrolyte systems. Here we propose a minimal electrostatic theory focusing on solvation entropy. Using…

Statistical Mechanics · Physics 2026-03-06 Wataru Kobayashi

The Seebeck coefficient plays a fundamental role in identifying the efficiency of a thermoelectric device. Its theoretical evaluation for atomistic models is routinely based on Density Functional Theory calculations combined with the…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Kaike Yang , Enrico Perfetto , Stefan Kurth , Gianluca Stefanucci , Roberto D'Agosta

The thermoelectric figure of merit of the Heusler alloy TiFe$_{1.5}$Sb was investigated by first-principles calculations of lattice thermal conductivity. The electronic thermal conductivity, electrical conductivity, and Seebeck coefficient…

Materials Science · Physics 2025-05-27 Rifky Syariati , Athorn Vora-ud , Fumiyuki Ishii , Tosawat Seetawan

We present a model for P-N-P abrupt heterostructures vertical to temperature gradient to improve the thermoelectric performance. The P-N-P heterostructure is considered as an abrupt bipolar junction transistor due to an externally applied…

Materials Science · Physics 2020-09-24 Bohang Nan , Guiying Xu , Quanxin Yang , Tao Guo

We present an ab initio study of the structural and electronic transport properties of tetrahedrite, Cu$_{12}$Sb$_4$S$_{13}$, in its high-temperature phase. We show how this complex compound can be seen as the outcome of an ordered…

Materials Science · Physics 2020-07-07 Cono di Paola , Francesco Macheda , Savio Laricchia , Cedric Weber , Nicola Bonini

Half-Heusler (HH) compounds have shown high Figure of merits up to 1.5. The key to these high thermoelectric efficiencies is an intrinsic phase separation, which occurs in multicomponent Half-Heusler compounds and leads to an significantly…

Materials Science · Physics 2015-02-09 Julia Krez , Benjamin Balke , Claudia Felser , Wilfried Hermes , Markus Schwind

We developed a theory of electric and thermoelectric conductivity of lightly doped SrTiO$_3$ in the non-degenerate region $k_B T \geq E_F$, assuming that the major source of electron scattering is their interaction with soft transverse…

Other Condensed Matter · Physics 2021-09-15 Kh. G. Nazaryan , M. V. Feigelman

High-performance thermoelectric oxides could offer a great energy solution for integrated and embedded applications in sensing and electronics industries. Oxides, however, often suffer from low Seebeck coefficient when compared with other…

Materials Science · Physics 2020-08-25 M. Hussein N. Assadi , J. Julio Gutiérrez Moreno , Marco Fronzi

We report the first concurrent determination of conductance (G) and thermopower (S) of single-molecule junctions via direct measurement of electrical and thermoelectric currents using a scanning tunneling microscope-based break-junction…

Mesoscale and Nanoscale Physics · Physics 2012-01-10 J. R. Widawsky , P. Darancet , J. B. Neaton , L. Venkataraman

We express the link between conductivity and coefficients of Seebeck, Nernst-Ettingshausen, Peltier, and Thompson and Reghi-Leduc via the temperature derivative of the chemical potential of a system. These general expressions are applied to…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Andrey Varlamov , Alexey Kavokin

While thermoelectric transport theory is well established and widely applied, there remains some degree of confusion on the proper thermodynamic definition of the Seebeck coefficient (or thermoelectric power) which is a measure of the…

Materials Science · Physics 2016-04-05 Y. Apertet , H. Ouerdane , C. Goupil , Ph. Lecoeur

We present the technical details of a broadband microwave spectrometer for measuring the complex conductance of thin films covering the range from 50 MHz up to 16 GHz in the temperature range 300 mK to 6 K and at applied magnetic fields up…

Instrumentation and Detectors · Physics 2015-06-18 Wei Liu , LiDong Pan , N. P. Armitage

A first-principles approach is presented for the thermoelectricity in molecular junctions formed by a single molecule contact. The study investigates the Seebeck coefficient considering the source-drain electrodes with distinct temperatures…

Mesoscale and Nanoscale Physics · Physics 2009-05-07 Yu-Shen Liu , Yu-Chang Chen

We investigate hot carrier propagation across graphene using an electrical nonlocal injection/detection method. The device consists of a monolayer graphene flake contacted by multiple metal leads. Using two remote leads for electrical…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 J. F. Sierra , I. Neumann , M. V. Costache , S. O. Valenzuela

The Coulomb Blockade Thermometer (CBT) is a primary thermometer for cryogenic temperatures, with demonstrated operation from below 1 mK up to 60 K. Its performance as a primary thermometer has been verified at temperatures from 20 mK to 200…

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